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source: branches/PerformanceComparison/HeuristicLab.OptimizationExpertSystem/3.3/Toolbar/DownloadFromOKBToolbarItem.cs @ 14728

Last change on this file since 14728 was 13767, checked in by abeham, 9 years ago

#2457: fixed cross-thread exception

File size: 2.9 KB
RevLine 
[13748]1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2016 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
4 *
5 * This file is part of HeuristicLab.
6 *
7 * HeuristicLab is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation, either version 3 of the License, or
10 * (at your option) any later version.
11 *
12 * HeuristicLab is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
19 */
20#endregion
21
22using HeuristicLab.Common;
23using HeuristicLab.MainForm;
24using System;
25using System.Drawing;
26
27namespace HeuristicLab.OptimizationExpertSystem.Toolbar {
28  internal class DownloadFromOKBToolbarItem : ToolbarItemBase {
29    public override string Name {
30      get { return "Download"; }
31    }
32
33    public override string ToolTipText {
34      get { return @"Download relevant runs, including algorithm instances
35and problem instances from the OKB server."; }
36    }
37
38    public override int Position {
39      get { return 10; }
40    }
41
42    public override Image Image {
43      get { return HeuristicLab.Common.Resources.VSImageLibrary.ArrowDown; }
44    }
45
46    public override void Execute() {
47      MainForm.ExpertSystem.UpdateKnowledgeBaseAsync();
48    }
49
50    protected override void OnToolStripItemSet(EventArgs e) {
51      base.OnToolStripItemSet(e);
[13767]52      SetToolStripItemEnabled(MainForm.ExpertSystem.Problem.ProblemId != -1);
[13748]53      MainForm.ExpertSystem.Problem.ProblemChanged += OnProblemChanged;
54      MainForm.ExpertSystem.DownloadStarted += OnDownloadStarted;
55    }
56
57    private void OnProblemChanged(object sender, EventArgs e) {
[13767]58      SetToolStripItemEnabled(MainForm.ExpertSystem.Problem.ProblemId != -1);
[13748]59    }
60
61    private void OnDownloadStarted(object sender, EventArgs<IProgress> e) {
[13767]62      SetToolStripItemEnabled(false);
[13748]63      e.Value.ProgressStateChanged += DownloadProgressOnStateChanged;
64    }
65
66    private void DownloadProgressOnStateChanged(object sender, EventArgs eventArgs) {
67      var progress = (IProgress)sender;
68      if (progress.ProgressState == ProgressState.Finished || progress.ProgressState == ProgressState.Canceled) {
[13767]69        SetToolStripItemEnabled(true);
[13748]70        progress.ProgressStateChanged -= DownloadProgressOnStateChanged;
71      }
72    }
[13767]73
74    private void SetToolStripItemEnabled(bool state) {
75      if (ToolStripItem.Owner != null && ToolStripItem.Owner.InvokeRequired) { ToolStripItem.Owner.Invoke((Action<bool>)SetToolStripItemEnabled, state); return; }
76      ToolStripItem.Enabled = state;
77    }
[13748]78  }
79}
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